package com.artPreter.controller;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.artPreter.pojo.*;
import com.artPreter.pojo.dto.UserPwdDTO;
import com.artPreter.service.*;
import com.artPreter.utils.JwtUtil;
import com.artPreter.utils.Md5Util;
import com.artPreter.utils.ThreadLocalUtil;
import jakarta.validation.constraints.Pattern;
import org.hibernate.validator.constraints.URL;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Validated
@RestController
@RequestMapping("/user")
public class UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @PostMapping("/register")
    public Result register(String username,String password){
        // 查询用户
        User u = userService.findByUserName(username);
        if(u==null){
            userService.register(username,password);
            return Result.success();
        }else{
            return Result.error("用户名已被占用");
        }
        // 注册

    }

    @PostMapping("/add")
    public Result add(@RequestBody User user){
        // 查询用户
        User u = userService.findByUserName(user.getUsername());
        if(u==null){
            userService.add(user);
            return Result.success("用户添加成功");
        }else{
            return Result.error("用户名已被占用");
        }
    }
// /user/login
    /**
     * 登录
     * @param username
     * @param password
     * @return
     */
    @CrossOrigin(origins = "*")
    @PostMapping("/login")
    public Result<String> login( String username,String password) {
        //根据用户名查询用户

        User loginUser = userService.findByUserName(username);
        //判断该用户是否存在
        if (loginUser == null) {
            return Result.error("用户名错误");
        }

        //判断密码是否正确  loginUser对象中的password是密文
        if (Md5Util.getMD5String(password).equals(loginUser.getPassword())) {
            //登录成功
            Map<String, Object> claims = new HashMap<>();
            claims.put("id", loginUser.getId());
            claims.put("username", loginUser.getUsername());
            String token = JwtUtil.genToken(claims);
            //把token存储到redis中
            ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
            System.out.println("登录");
            System.out.println(loginUser.getUsername());
            if(loginUser.getUsername().equals("creater_screen")){
                operations.set(token,token,24*365,TimeUnit.HOURS);
            }else{
                operations.set(token,token,23, TimeUnit.HOURS);
            }
            return Result.success(token);
        }
        return Result.error("密码错误");
    }

    /**
     * 获取用户信息
     * @param token
     * @return
     */
    @GetMapping("/userInfo")
    public Result<User> userInfo1(@RequestHeader(name = "Authorization") String token) {
        //根据用户名查询用户
        Map<String, Object> map = JwtUtil.parseToken(token);
        String username = (String) map.get("username");
        User user = userService.findByUserName(username);
        return Result.success(user);
    }

    @GetMapping("/logout")
    public Result logout(@RequestHeader(name = "Authorization") String token) {
        //根据用户名查询用户
        ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
        operations.getOperations().delete(token);
        return Result.success("退出登录");
    }

    @PutMapping("/update")
    public Result update(@RequestBody User user) {
        // 查询用户
        User u = userService.findByUserName(user.getUsername());
        if(u==null){
            userService.edit(user);
            return Result.success("用户修改成功");
        }else if(u.getUuid().equals(user.getUuid())){
            userService.edit(user);
            return Result.success("用户修改成功");
        }else{
            return Result.error("用户名已被占用");
        }
    }

    @PatchMapping("updateAvatar")
    public Result updateAvatar(@RequestParam @URL String avatarUrl) {
        userService.updateAvatar(avatarUrl);
        return Result.success();
    }

    @PostMapping("/updatePwd")
    public Result updatePwd(@RequestBody UserPwdDTO user) {
        userService.updatePwd(user.getPassword());
        return Result.success("密码修改成功");

    }

    @PatchMapping("/updatePwd")
    public Result updatePwd(@RequestBody Map<String, String> params,@RequestHeader("Authorization") String token) {
        //1.校验参数
        String oldPwd = params.get("old_pwd");
        String newPwd = params.get("new_pwd");
        String rePwd = params.get("re_pwd");

        if (!StringUtils.hasLength(oldPwd) || !StringUtils.hasLength(newPwd) || !StringUtils.hasLength(rePwd)) {
            return Result.error("缺少必要的参数");
        }

        //原密码是否正确
        //调用userService根据用户名拿到原密码,再和old_pwd比对
        Map<String,Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User loginUser = userService.findByUserName(username);
        if (!loginUser.getPassword().equals(Md5Util.getMD5String(oldPwd))){
            return Result.error("原密码填写不正确");
        }

        //newPwd和rePwd是否一样
        if (!rePwd.equals(newPwd)){
            return Result.error("两次填写的新密码不一样");
        }

        //2.调用service完成密码更新
        userService.updatePwd(newPwd);
        //删除redis中对应的token
        ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
        operations.getOperations().delete(token);
        return Result.success();
    }

    @PostMapping("/getPage")
    public Result getPage(@RequestParam(value = "currentPage",defaultValue = "1") Integer currentPage, @RequestParam(value = "size",defaultValue = "10") Integer size, @RequestBody User user){
        IPage<User> userIPage = userService.getPage(currentPage,size,user);
        return Result.success(userIPage);
    }


    @PostMapping("/delete")
    public Result delete(@RequestBody User user){
        userService.delete(user);
        return Result.success("删除成功");
    }



}
